Question

One of the steps in the System Development Life Cycle is Implementation.

(a)Explain what work has already been completed before the start of Implementation.

(b)Describe what work is done during Implementation and explain why it is important.

(c) Explain why more time spent during earlier software development phases (e.g. analysis and design) can contribute to reducing overall software development costs. Provide an illustrating example to support your arguments.

Answer 1

A)	System develpoment life cycle is the cycle of events required for the development of the system (product)
	Steps involved befor the implementation phase are
	1	Planning
	2	System analysis
	3	System Design
	4	Developmnt
B)	Work done during implementation phase are
	1	implementation of the design through coding
	2	Identification of the errors and defects
	3	Development of test report
	4	Resource allocation
	5	installation of the new system
	Implemention of the system is one the most impotant step in the product life cycle . Feasibility of the product is determined through this step and the potential errors and the defects are also detected . Resources actually required for the system are identifie during this phase .
C)	Analysis it the understanding the requierment of the business needs, and designing is defining the solution system based on requierment and analystical decision. More time on these two phases can contribute to overall reduction in software development costs as analysis defines the narrow requierment that is requierment of the business and more the time spent on this stage will provide the specisfic needs of the business. Designing the system for such specific requierment will lead better results as the system focuses on the specific result of the anaysisi phase. Since the work is to done for a narrow range of requierment this will lead to cost savings.